Press



(N0 M0691. v 2 Sheets-Sheet 1. V. D. ANDERSON.

PRESS.

No 602,929. Patented Apr 26,1898.

UNITED STATES PATENT Orrrcn,

VALERIUS D. ANDERSON, OF CLEVELAND, OHIO.

PRESS.

srnorrron'rron forming part 01" Letters Patent No. 602,929, dated April26, 1898.

Application filed August13,l896. Serial No. 602,634. (NomotlelJ To allwhom it may concern.-

- Be it known that I, VALERIUS D. ANDER- SON, a citizen of the UnitedStates, residing at Cleveland, in the county of Ouyahoga and State ofOhio, have invented certain new and useful Improvements in Presses, ofwhich the following is a specification.

My present invention pertains to presses for extracting oil, grease,moisture, juices, &c.; and it consists, primarily, in the combination oftwo endless flexible belts, one or both in the form of a chain orjointed metal band.

The invention further consists in means for feeding the press,maintaining the belts in proper working position and relation, andinsuring the requisite pressure, and in other features, details, andcombinations hereinafter set forth.

In the accompanying drawings, Figure 1 is a side elevation of the pressin its preferred form; Fig. 2, a vertical cross-section through thepressing-belts and a part of the frame; Figs. 3 and l, detail views ofthe bridge-pieces which support the lowerbelt between thepressure-rolls, and Figs. 5 and 6 side elevations of modified forms ofthe press.

In the treatment of garbage, brewers and distillers grains, and othersubstances containing a large percentage of water, with or without oilor grease, much difficulty has been experienced in removing a fair oradequate percentage of such fluid or semifiuid matters.

I have ascertained by extended and costly investigation and experimentthat in order to express any large percentage of the fluid or semifluidcontents of a charge it is essential that it be subjected to a series ofcompressions, each heavier or stronger than that preceding, and it isimportant to permit the pressure to lessen between succeedingcompression s. This relief from pressure permits the mass to open andallows the fluid to escape from its interior. The vital point, however,is that the pressure be exerted along a narrow line and thusconcentrated on a coinparatively small surface at any given instant.With sufficiently heavy pressure and by following out this mode ofpressing I am enabled to extract apercentage of moisture, oil, grease,

&c., far in excess of anything hitherto accomplished so far as I havebeen able to learn through many years of active work in this line.

In another application, Serial No. 599,538, filed in my name on the 17thday of July, 1896, I have set forth this plan of pressing by the aid ofan endless chain belt acting in conjunction with the interior surface ofa hollow drum or barrel. The present constructions embody thisprinciple, but are better suited to certain classes of work or for usein certain situations and admit of more ready feeding and delivery ofmaterial.

Referring first to Fig. 1,-A indicates a strong frame, which may be ofmetal or, of wood, or of the two combined, and of such dimensions as thepurposes of the press render expedient. J ournaled in suitable boxes orbearings a upon this frame are the shafts or axles b of two broad-facedwheels or drums B, about which is carried an endless belt O, composed ofbroad flat lags c, jointed one to another after the manner of a linkbeltor in any usual or convenient fashion. The joint-pins d, by which thelags c are connected, are extended outward beyond the sides of the lagsto form axles or spindles for rollers D. (Shown in Figs. 1 and 2.)

E indicates a track or bearing rail or bar, of which there are two, onebolted to either side of frame A directly over the lines of travel ofrollers D, for which rollers they form tracks or backings, thus servingto prevent the rollers, and consequently the lags c, from being liftedup above a predetermined plane while passing from the lower side of onewheel or drum B to that of the other.

F F indicate a second pair of wheels or drums, the axles e of which arejournaled in frame A at a lower level than axles b of wheels B, and alsoat a greater distance apart or nearer the ends of the frame. Thesewheels or drums serve to support and carry a second chain belt G, whichis advisably composed of a plurality of separate chains f, capable ofyielding independently and serving also to permit the escape of moistureor liquid between them. Hitherto it has been customary to make suchchains of links or lags the full width of the belt, and as a consequenceit has been found difficult to effect or secure the prompt and completeescape of moisture or liquid from the mass lying between thepressing-surfaces. It is also found that by making the belt of separatechains lying closely together it will adapt itself to the irregularitiesof the material or the mass entering be-- tween the chains and willpermit a better distribution and rearrangement of particles between thepressing-surfaces. Incidentally this construction permits the readywidening or narrowing of the pressing-surfaces.

The several chains f are composed of fiat lags or links, pin-jointed toone another, and one at least is provided with teeth or projections g toenter cavities in the wheels F to insure movement with the wheels. Thisis found quite important for the reason that in working upon substancescontaining grease or oil the belt is liable to slip, and thus to causeflattening of the wheels and unsatisfactory work, if indeed any work bepossible.

H indicates a pressure-roller, of which three are represented in thedrawings, each journaled in a sleeve h, pivotally supported in a bail oryoke at the lowerend of a tension-rod I, passing through a bracket J atthe top of frame A and encircled by a powerful spring K, the compressionof which is effected and determined by a nut L, acting upon aninterposed disk M. The springs K tend to lift the rollers II and tocause them to bear with great force beneath the upper stretch of chainbelt G, thus in turn causing the belt G to bear against the lower faceof belt 0 or against any material between the opposing faces of the twobelts. It is to enable it to withstand this pressure that belt 0 isfurnished with rollers D and these arranged to traverse the backingrails or bars E, as above noted.

To limit and determine the approximation of the opposing surfaces ofbelts (J and G, the rods I are screw-threaded to a point somewhat belowthe brackets J, and nuts N are screwed thereon beneath the brackets orbefore the rods are passed through them. These nuts can be set up ordown at will and form stops to limit the rise of the rods andconsequently that of the rollers I-I. Hence however great thecompression of the springs may be the approach of the belt-faces will belimited by the nuts N.

To prevent the rollers II from shifting laterally,the sleeves h areguided in slots or openings in a raised plate 0, bolted or otherwisemade fast to the frame A.

It will be seen that if no provision be made to the contrary the belt Gor its parts would sag between the rollers H. To preclude this, Iprovide saddles P of the form shown in Figs. 3 and 4. These comprise abody portion or bar-1', having concave under faces to conform closely tothe contour of the rollers H, and end plates j, extending from onerolleraxle to the other and provided with seats 7a to fit said axles. Bythis construction the saddles are retained in place, as indicated inFig. 3.

The rollers H are provided with cavities or recesses Z to receive theteeth or studs 9 of the chain-lags, so that the rolls are caused torotate with the same surface speed as that of the proximate face of beltG, and the saddles P are formed with grooves in to permit the passage ofsaid teeth.

Motion is imparted to the wheels and belts from a power-shaft Q througha pinion R and gear-wheels S and T, carried by the shafts or axles ofwheels B and F,respectively,as shown in Fig. 1.

U indicates a feed -hopper supported by frame A and arranged with itsdelivery end or outlet at the bite of the two belts C and G, the lowerbelt extending outward beneath the hopper,as showmand thusinsuring theproper retention of the material.

At the sides of the belts C and G and overlapping the space or linebetween them are guard plates or bars V, which serve to keep the beltsin proper position, and also to prevent escape of material at the sidesof the belts. These guards are shown in Figs. 1 and 2. The materialafter passing between the belts, subject to the increasing pressure ofsuccessive rollers II, is discharged over the rear wheel F upon theground or into any suitable receptacle.

In Fig. 5 I have shown a press embodying the same general principles ofconstruction, but have represented the frame as of substantiallysemicircular form, with the pressure-rollers above and the springsbelow, the belt-rollers bearing upon a track or flange formed upon theframe.

Fig. 6 shows still another modification, in which a belt A of anysuitable character, but preferably of woven or fibrous material, iscarried about two wheels or drums B B, and a chain belt 0', providedwith supportingrollers D, passes over a curved track or rail F and hasits inner stretch or part pressed against the belt A and presses thisagainst wheel B, through the action of presser-rolls G, provided withsprings H and temperscrews I.

The construction illustrated in Fig. 1 is preferred and after that theconstruction shown in Fig. 5.

Having thus described my invention, I claim 1. In a press, thecombination of a frame; wheels or drums mounted in said frame; anendless chain belt passing about said wheels or drums; supporting barsor rails within said belt to guide and support its working face; asecond pair of wheels or drums; a sec ond endless chain passing aboutsaid wheels or drums, composed of separate parallel chains, and havingits face opposed to that of the first belt; and means substantially suchas shown and described for pressing and holding the second belt againstor close to the first, throughout an extended area.

2. In a press, the combination of a frame A, wheels or drums B B mountedtherein; a chain belt 0 passing about said wheels; rollers D carried bysaid chain belt; tracks or bars E for said rollers; wheels or drums F,F, mounted in the frame A; endless chain belt G passing about saidwheels and consisting of a series of separate parallel chains; and meanssubstantiallysnch as described and shown for pressing and holding belt Gagainst or close to belt 0, throughout an extended area.

3. The herein-described press, comprising a frame A; wheels or drums BB; endless chain belt 0 provided with rollers D; trackrails E E for saidrollers; wheels or drums F 1 endless chain belt G; pressure-rollers Hserving to press belt G toward belt 0; saddles P located between therollers H; drawrods I springs K; and means for determiningthe'compression of said springs.

4:. In combination with frame A having guide-plates 0; wheels 13 Bmounted in said frame; endless chain belt 0 passing about said wheels;supporting-bars E for said belt; wheels F F also mounted in frame A;endless chain belt G passing about said wheels; pressure-rollers Hbeneath the upper section of belt G; collars or boxes it applied to thejournals of rollers H and guided by plate 0; drawrods I carrying thesleeves h, and springs K applied to said rods.

5. In combination with frame A; endless chain belts G and G and theirsupporting or carrying wheels; guide-plates O; sleeves or collars hadapted to support a series of rollers guided by said plates; draw-rodsI carrying said sleeves; and springs K applied to said rods.

6. In combination with chain belt 0 and its supports; chain belt G,consisting of a plurality of parallel chains, one provided with teeth g;carrying wheels F F for said chain; pressure-rollers H for chain G; andasaddle P interposed between proximate rollers Hto prevent sagging ofbelt F, the wheels F, rollers II and saddle 1? being all recessed toreceive or permit the passage of teeth g; substantially as described andshown.

7. In a press, the combination of two endless belts arranged face toface through aportion of their length, one composed of separate parallelchains; carrying wheels or drums for said belts; and means substantiallysuch as shown and described for pressing and hold in g the opposingfaces of the two belts in close proximity.

In witness whereof I hereunto set my hand in the presence of twowitnesses.

VALERIUS D. ANDERSON.

Witnesses:

WM. H. DE WI'rT, Donn O. DEUTSCHEL.

